(state) in the Federal Republic of Germany (FRG, or West Germany). West Berlin’s isolation was later on bolstered via the concrete barrier erected in 1961 and known as the Berlin Wall. Its status as an enclave made Berlin a continuous concentrate of confrontation in between the Eastern and Western powers https://chippz.de/sicherheitsdienst-berlin-ihr-verlasslicher-partner-fur-schutz-und-sicherheit/